15897066

Source:http://linkedlifedata.com/resource/pubmed/id/15897066

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Predicate	Object
rdf:type	pubmed:Citation
lifeskim:mentions	umls-concept:C0018270, umls-concept:C0025938, umls-concept:C0043047, umls-concept:C0456205, umls-concept:C1280500, umls-concept:C1450054, umls-concept:C1521828, umls-concept:C1550605, umls-concept:C1555029
pubmed:issue	2
pubmed:dateCreated	2005-5-17
pubmed:abstractText	The effects of water content on the growth rate and the final particle size of AgCl nanoparticles in a reversed micelle (RM) system of polyoxyethylene (6) nonylphenyl ether (NP-6)/water/cyclohexane were investigated using a double-jet technique, in which RM solutions of AgNO(3) and KCl were added concurrently to a RM solution containing the excess concentration of chloride ion. As a result, the particle growth rate and the final particle size at a constant Rw ( identical with[water]/[surfactant]) below 5 were found to be in excellent agreement with our theoretical prediction based on a dynamic Ostwald ripening mechanism governed by the overall solubility of the solid and the diffusivity of the reversed micelles, whereas the final particle size was far beyond the size of the water pool of a reversed micelle. Thus, the dramatic reduction of the particle size in the RM system can be explained by the drastic reduction of the overall solubility of the solid and the small diffusivity of the bulky reversed micelles as a carrier of silver ion, and not by the size of the water pool of a reversed micelle as conventionally explained. Some additional contribution of a coagulation process was also suggested in a high Rw range above 5. Significant coagulation of AgCl particles was observed in a RM system with AOT in place of NP-6 even under the standard conditions for the NP-6 system.
pubmed:language	eng
pubmed:journal	http://linkedlifedata.com/resource/pubmed/journal/0043125
pubmed:status	PubMed-not-MEDLINE
pubmed:month	Jun
pubmed:issn	0021-9797
pubmed:author	pubmed-author:KimijimaKen'ichiK, pubmed-author:SugimotoTadaoT
pubmed:issnType	Print
pubmed:day	15
pubmed:volume	286
pubmed:owner	NLM
pubmed:authorsComplete	Y
pubmed:pagination	520-5
pubmed:dateRevised	2009-11-11
pubmed:year	2005
pubmed:articleTitle	Effects of the water content on the growth rate of AgCl nanoparticles in a reversed micelle system.
pubmed:affiliation	Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai 980-8577, Japan.
pubmed:publicationType	Journal Article